On Mon, Aug 13, 2012 at 8:16 AM, Michael Hampicke <mgehampi...@gmail.com> wrote: > Howdy gentooers, > > I am looking for a filesystem that perfomes well for a cache directory. > Here's some data on that dir: > - cache for prescaled images files + metadata files > - nested directory structure ( 20/2022/202231/*files* ) > - about 20GB > - 100.000 directories > - about 2 million files > > The system has 2x Intel Xon Quad-cores (Nehalem), 16GB of RAM and two > 10.000rpm hard drives running a RAID1. > > Up until now I was using ext4 with noatime, but I am not happy with it's > performence. Finding and deleting old files with 'find' is incredible slow, > so I am looking for a filesystem that performs better. First candiate that > came to mind was reiserfs, but last time I tried it, it became slower over > time (fragmentation?). > Currently I am running a test with btrfs and so far I am quiet happy with it > as it is much faster in my use case. > > Do you guys have any other suggestions? How about JFS? I used that on my old > NAS box because of it's low cpu usage. Should I give reiser4 a try, or > better leave it be given Hans Reiser's current status?
I think btrfs probably is meant to provide a lot of the modern features like reiser4 or xfs (tail-packing, indexing, compression, snapshots, subvolumes, etc). Don't know if it is considered stable enough for your usage but at least it is under active development and funded by large names. I think if you would consider reiser4 as a possibility then you should consider btrfs as well.
